# Scent Diffuser vs SMART_AROMA PRO

The clearest difference is iOS requirement: SMART_AROMA PRO at 13.0 against Scent Diffuser's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scent Diffuser ships an update every 2 weeks, SMART_AROMA PRO fortnightly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Scent Diffuser | SMART_AROMA PRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 5 MB | 185 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen Lenze Technology Co,.Ltd.](https://appshunter.io/developer/1190864538) | [萍萍 刘](https://appshunter.io/developer/1626043006) |

## What reviewers say

### Scent Diffuser

[App page](https://appshunter.io/ios/app/scent-diffuser/id1578216698)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SMART_AROMA PRO

[App page](https://appshunter.io/ios/app/smart-aroma-pro/id6642651078)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Scent Diffuser free?

Scent Diffuser is free to download, with no in-app purchases.

### Is SMART_AROMA PRO free?

SMART_AROMA PRO is free to download, with no in-app purchases.

### Do Scent Diffuser or SMART_AROMA PRO have ads?

Neither Scent Diffuser nor SMART_AROMA PRO shows ads.

### Which is updated more often, Scent Diffuser or SMART_AROMA PRO?

Scent Diffuser ships an update every 2 weeks, and SMART_AROMA PRO fortnightly. Most recently, Scent Diffuser was updated on October 14, 2026 and SMART_AROMA PRO on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*